Wurkkos HD02 Four Beams Flashlight Review
The Wurkkos HD02 four beams flashlight features white LED, green laser, two-mode UV, and a CCT-adjustable side light setup that’s very fun! Read on for testing.
Official Specs and Features
Here’s a link to the Wurkkos HD02 four beams flashlight product page on Kickstarter.
Versions
As far as I can tell, there’s just one version of the Wurkkos HD02 four beams flashlight.
Price
The early bird price on Kickstarter for the Wurkkos HD02 four beams flashlight is around $60. MSRP appears to be around $120.
What’s Included
- Wurkkos HD02 four beams flashlight
- Wurkkos 5000mAh 21700
- Charging cable
- Lanyard
- Spare o-rings (2)
- Manual
Package and Manual
Build Quality and Disassembly
Build quality of the Wurkkos HD02 four beams flashlight is good – there are no real concerns here. It’s not a small light, though, so don’t really think of this as a “flat light” in the realm of Olight Arkfeld Pro. But it’s sturdy!
The tailcap is removable. It’s just a bit hard to get at, because so little of it (4-5mm) sits above the body of the light.
It’s the type of tailcap I don’t like because it fits around the 21700. I also don’t like this setup because it’s nearly impossible to avoid touching the threads. And then you’ll get thread lube on your fingers!
In side the cell tube is a spring – in fact both ends have springs.
The Wurkkos HD02 is described as a “four beams flashlight.” You’ve seen the first three above – below you can see the other. There are COB emitters on these arms. They’re very floody (obviously, as they’re COB) but they also offer CCT changing options from warm to cool white.
Just inside the arms, each section of the body has a bit of information about these side emitters. Basically, the user interface for the side emitters.
Size and Comps
126×41×26mm and 195g (without cell)
If the flashlight can headstand, I’ll show it here. If it can tailstand, I’ll also show that here!
Here’s the test light with the venerable Convoy S2+. The version below is a custom laser-engraved Convoy S2+ host by GadgetConnections.com. I did a full post on an engraved orange host right here! Or go straight to GadgetConnections.com to buy your Convoy S2+ now!
Also in the photo above, my Standard Reference Material (SRM) flashlight is the Hanko Machine Works Trident, an 18350 light. While I have not reviewed or tested the Gunner Grip version seen here, I have tested a Hanko Machine Works Trident Total Tesseract in brass. I love the Trident, and it’s a striking contrast to the inexpensive Convoy S2+, another great SRM.
Retention and Carry
A pocket clip is built into the Wurkkos HD02 four beams flashlight. The clip is attached by three screws. It’s not reversible, and is not really deep carry.
A lanyard is included. It really only attaches to the pocket clip, which is not ideal, as there’s not a great place to attach it. Yes, there’s a big open area in the cli,p and it’ll be easy to attach, but it’s still not a great spot.
The tailcap magnet is very strong!
Power and Runtime
The Wurkkos HD02 four beams flashlight uses a lithium-ion cell. Wurkkos includes this 5000mAh 21700.
The positive end goes into the light (the normal orientation for cells.)
As far as I can tell, the main emitter (Luminus SFT70) does not have discrete modes. That means there are low and Turbo, and nothing specific in between. So I tested turbo twice, and then some random mode in the middle-ish. It’s a real shame that the light lacks discrete modes. I need those modes. I need 4, but a light like this probably needs 5. Ramping in addition is fine!
The temperature lines in these charts are included as general context, not precise measurements. The values represent the range (min to max) during testing, but should not be taken as exact readings. Temperature sensors are attached however feasible and not always on the bezel or hottest spot (assuming that can even be clearly defined). Even with ideal placement, too many variables affect temperature to definitively state a specific max value.
Charging
The Wurkkos HD02 four beams flashlight has a USB-C charging port in the head, just above the pocket clip.
Wurkkos includes a C to C charging cable.
Charging looks good, and is pretty high current – around 2.4A. That’s a lot, but the cell is 5000mAh. Thus, 2.4A is under 0.5C.
Pulse Width Modulation
Neither of the discrete modes (low or Turbo) use PWM.
Click here to see a “baseline” – a chart with almost no light hitting the sensor.
Then there’s the Ultrafire WF-602C flashlight, which has some of the worst PWM I’ve seen. It’s so bad that I used a post about it to explain PWM! Here are multiple timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make comparing this “worst” PWM light to the test light easier. That post also explains why I didn’t test the WF-602C at the usual 50us scale.
User Interface and Operation
The Wurkkos HD02 four beams flashlight uses (first) a rotary selector. Next, and in the center of that rotary control, is an indicating e-switch. The rotary order is UV, LED, Laser, and does not have a lock position.
The e-switch is proud and the action is deep.
Here’s a user interface table! What the Wurkkos HD02 four beams flashlight does, of course, depends on where the selector is.
| State | Action | Result |
|---|---|---|
| Off – Selector on UV | Click | UV on |
| UV on | Hold | Mode advance (Low > High) |
| On | Click | Off |
| Off – Selector on Laser | Click | Laser On |
| Off – Selector on LED | Click | On – Mode memory |
| Off – Selector on LED | Hold | Low |
| Any (Except strobe) – Selector on LED | Double click | Turbo |
| Turbo | Double click | Low |
| Any – Selector on LED | Click 3x | Strobe |
| On – Selector on LED | Hold | Stepless brightness adjustment^ |
| Selector anywhere | Open side light(s) | Side lights on in mode memory |
| Side beam on | Hold | Stepless brightness adjustment^ |
| Side beam on | Click + Click hold | Stepless CCT adjustment |
| Off | Click 4x | Lock |
| Lock | Click 4x | Unlock |
^ Hold once for increasing brightness. Release and hold again for decreasing brightness.
LED and Beam
Wurkkos has used a Luminus SFT70 emitter, and it has a smooth reflector. The two-mode UV emitter also has a tiny reflector. You can see the laser module too – the bottom brassy piece. This is all covered by a lens.
The laser is rated to 0.3mW.
Either side light will turn on – to turn it on, just open the wing.
LED Color Report (CRI and CCT)
The main emitter (Luminus SFT70) is very cool white (very very cool white, up to 8600K) and low CRI.
CCT (Correlated Color Temperature) refers to the measurement of the color appearance of light, expressed in Kelvins (K), which indicates whether the light is warm (yellowish) or cool (bluish). A lower CCT (below 3000K) is considered warm light, while a higher CCT (above 5000K) gives cooler, bluish light.
CRI (Color Rendering Index) is a measure of how accurately a light source renders colors in comparison to natural sunlight. Scored on a scale from 0 to 100, higher CRI values indicate that colors appear more true to life and vibrant, similar to how they would look under the sun.
Beamshots
These beamshots always have the following settings: f8, ISO100, 0.3s shutter, and manual 5000K exposure. These photos are taken at floor level, and the beam hits the ceiling around 9 feet away. The side lights are really so floody they won’t turn out in these photos.
Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)
I keep the test flashlight on the left and the BLF-348 reference flashlight on the right. These photos are taken around 18 inches from the door.
I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!
Summary and Conclusion
The Wurkkos HD02 four beams flashlight is certainly a full-functioned light, with many features. If you need laser and UV, this light seems like a good choice (particularly at the early bird price). If you do need laser and UV, then the side “wing” or “arm” lights are just a nice bonus! I appreciate that they have adjustable CCT. The main (front) LED really needs discrete modes, though. The user interface is easy enough to understand, too.
The Big Table
| Wurkkos HD02 | |
|---|---|
| Emitter: | Luminus SFT70 |
| Price in USD at publication time: | $60.00 |
| Cell: | 1×20700 |
| Runtime Graphs | |
| LVP? | ? |
| Switch Type: | E-Switch |
| Quiescent Current (mA): | ? |
| On-Board Charging? | Yes |
| Charge Port Type: | USB-C |
| Charge Graph | |
| Power off Charge Port | “with cell: all modes without cell and/or tailcap: very low modes only” |
| Claimed Lumens (lm) | 3200 |
| Measured Lumens (at 30s) | 2175 (68% of claim)^ |
| Candela per Lumen | 9.1 |
| Claimed Throw (m) | 330 |
| Candela (Calculated) in cd (at 30s) | 590lux @ 5.98m = 21099cd |
| Throw (Calculated) (m) | 290.5 (88% of claim)^ |
| Claimed CCT | – |
| Measured CCT Range (K) | 6800-8600 Kelvin |
| Item provided for review by: | Wurkkos |
| All my Wurkkos reviews! | |
^ Measurement disclaimer: Testing flashlights is my hobby. I use hobbyist-level equipment for testing, including some I made myself. Try not to get buried in the details of manufacturer specifications versus measurements recorded here; A certain amount of difference (say, 10 or 15%) is perfectly reasonable.
What I like
- Good build quality
- Reasonably simple user interface
- Two modes for UV
- Lasers are fun!
- The COB wing lights are fun and interesting (and work well)
- CCT adjustment on side lights
What I don’t like
- It’s big for being a “flat light”
- The tailcap
- Price (after the early bird price)
- Ramping only for main LED
Notes
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